TEXIO PU100-7.5, Инструкция по эксплуатации

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3.9. CONNECTING THE LOAD
WARNING
Turn off the AC input power before making or changing any rear panel
connection. Ensure that all connections are securely tightened before
applying power. There is a potential shock hazard when using a power
supply with a rated output greater than 40V.
3.9.1 Load Wiring
The following considerations should be made to select wiring for connecting the load to the power
supply:
* Current carrying capacity of the wire (refer to 3.9.2).
* Insulation rating of the wire should be at least equivalent to the maximum output voltage of the power
supply.
* Maximum wire length and voltage drop (refer to 3.9.2).
* Noise and impedance effects of the load wiring (refer to 3.9.4).
3.9.2 Current Carrying Capacity
Two factors must be considered when selecting the wire size:
1. Wires should be heavy enough not to overheat while carrying the power supply load current at
the rated load, or the current that would flow in the event the load wires were shorted, whichever
is greater.
2. Wire size should be selected to enable voltage drop per lead to be less than 1.0V at the rated
current. Although units will compensate for up to 5V in each load wire, it is recommended to
minimize the voltage drop (1V typical maximum) to prevent excessive output power consumption
from the power supply and poor dynamic response to load changes. Please refer to Tables 3-2
and 3-3 for maximum wire length to limit voltage drop in American and European dimensions
respectively.
Table 3-2: Maximum wire length for 1V drop on lead (in feet)
Maximum length in Feet to limit
voltage drop to 1V or less
Wire size
AWG
Resistivity
Ω/1000ft
5A 10A 20A 50A 150A
14 2.526 80 40 20 8 2
12 1.589 120 60 30 12 3.4
10 0.9994 200 100 50 20 6
8 0.6285 320 160 80 32 10
6 0.3953 500 250 125 50 16
4 0.2486 800 400 200 80 26
2 0.1564 1200 600 300 125 40
0 0.0983 2000 1000 500 200 68
Table 3-3: Maximum wire length for 1V drop on lead (in meters)